[yt-users] camera question
Michael Zingale
michael.zingale at stonybrook.edu
Fri May 23 08:09:54 PDT 2014
My guess is that you need to play with the alpha values when you
add_layers. From the docs, if you don't supply alpha, it is:
"The alpha value height for each Gaussian. If not supplied, it is
calculated as the logspace between -2.0 and 0.0"
so it looks like the last value you add will have alpha = 1, i.e. opaque.
On Fri, May 23, 2014 at 10:57 AM, Stephanie Tonnesen <stonnes at gmail.com>wrote:
> Hi all,
>
> I am trying to make a nice volume rendering, and am having some trouble.
> My camera commands are:
> tf = ColorTransferFunction((-29,-24))
> tf.add_layers(8,w=0.1,colormap="Hue Sat Value 2")
> tf.sample_colormap(-26.5,w=0.02,colormap="Hue Sat Value 2")
> cam = pf.h.camera([0.0,2.,1.8],[0.0,-1.0,-0.2],4.0,512,tf)
> cam.show()
>
> I will attach the image, also (v11). First, when I use add_layers, can I
> get yt to print out WHERE the layers are? Second, but related, when I just
> use add_layers I only see the higher density gas. I have to add
> sample_colormap to see lower density gas (the blue stuff). Compare v11 to
> v6 to see what I am talking about.
>
> Thanks!
>
> Stephanie
>
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>
--
Michael Zingale
Associate Professor
Dept. of Physics & Astronomy • Stony Brook University • Stony Brook, NY
11794-3800
*phone*: 631-632-8225
*e-mail*: Michael.Zingale at stonybrook.edu
*web*: http://www.astro.sunysb.edu/mzingale
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